20875925 has 12 divisors (see below), whose sum is σ = 29584416. Its totient is φ = 14314800.

The previous prime is 20875919. The next prime is 20875931. The reversal of 20875925 is 52957802.

It is an interprime number because it is at equal distance from previous prime (20875919) and next prime (20875931).

It is not a de Polignac number, because 20875925 - 2⁴ = 20875909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59471 + ... + 59820.

It is an arithmetic number, because the mean of its divisors is an integer number (2465368).

Almost surely, 2^20875925 is an apocalyptic number.

20875925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20875925 is a deficient number, since it is larger than the sum of its proper divisors (8708491).

20875925 is a wasteful number, since it uses less digits than its factorization.

20875925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119308 (or 119303 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 20875925 is about 4569.0179469991. The cubic root of 20875925 is about 275.3479892154.

The spelling of 20875925 in words is "twenty million, eight hundred seventy-five thousand, nine hundred twenty-five".